> For the complete documentation index, see [llms.txt](https://developers.esms.vn/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers.esms.vn/en/readme/access-to-the-api-information.md).

# Access to the API information

Before you get started, please create an account at eSMS.vn at access to the API information page to get the keys. After successfully, you will have 5000 VND for trial.

![Access to API mangement.](/files/Cr68WnS3DCqYjrYZ9nFZ)

![Use the pair of keys shown on the page or you can re-create the new keys.](/files/6m3K7RpJfCWadB2cOhRl)